Home / 18,767.08-28,148.46-4,917.16

Finding the Fourth Proportional to 18,767.08, 28,148.46 and 4,917.16

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Solution

The fourth proportional to 18,767.08, 28,148.46 and 4,917.16 is: 7,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.08 : 28,148.46 = 4,917.16 : x
  2. Step 2: Convert to fraction form
    18,767.08/28,148.46 = 4,917.16/x
  3. Step 3: Cross multiply
    18,767.08x = 28,148.46 × 4,917.16
  4. Step 4: Simplify right side
    18,767.08x = 138,410,481.57
  5. Step 5: Solve for x
    x = 138,410,481.57/18,767.08
  6. Step 6: Final answer
    x = 7,375.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.